Territory



(No Model.) 2 Sheet sSheet 2.

P. G. OOT'TER, L. HOLLADAY & R. J. D UNGAN.

' PILOT BAR LIFTER.

No. 522,452. Patented July 3, 1894.

WITNESSES. I I INVENTORS x UN ED; STATES PATENT OFFICE.

, motives, and its object is to provide a new'and' PETER e. COTTER, FYUMA, LEONIDAS HOLLADAY, or PIMA, AND RANsoM J. DUNCAN, OF YUMA,'ARIZONATERRITORY.

PILOT-BAR LIFTER.

SPECIFICATION forming art of Letters Patent No. 522,452, dated Jul 3,1894.

Application filed July 8, 1893. Serial No. 4796937. (No model.) 7

To aZZ whom it may concern: 1

Be it known that we, PETER G. COTTER, of

Yuma, in the county of Yuma, LEONIDAS HoL- LADAY, of Pima, in the countyof Pima, and

RANsoM J. DUNCAN, of Yuma, in the county of Yuma, Territory of Arizona,have invented a new and Improved Pilot-Bar Lifter and Adjuster, of whichthe following isa full, clear, and exact description.

The invention relates to pilot bars of locoimproved device forconveniently and easily .lifting and holding thepilot bar in positionfor coupling, without a brakeman, other man or operator being compelledto mount the cowcatcher or assume any dangerous position to make thecoupling, as at present practiced.

The invention consists of alifting mechanism adapted to engage the pilotbar and under the control of an operator, either in the cab of thelocomotive or upon its front end,

but preferably by the locomotive engineer or other man or operator inthe cab of same.

The invention also consists of certain parts and details, andcombinations of the same, as

willbe hereinafter described and then pointed out in .the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a plan view of the improvement. Fig. 2 is a sectional sideelevation of the same, on the line 2-2 of Fig. 1. Fig. 3 is a sectionalside elevation of another form of the improvement; and Fig. 4 is a crosssectional elevation of the same on line 4-4 of Fig. 3. I

As illustrated in Figs. 1 and 2,the pilot bar or coupling A, is pivotedatone end in the usual drawhead B, secured on the cowcatcher O, of thelocomotive, as plainly shown in the drawings. The under side of thepilot bar A is engaged by the top surface of a grooved cam D, secured ona transversely extending shaft E, mounted to turn in suitable bearingsF, erected on the cowcatcher 0, under the bars thereof, as shown in thedrawings. From the pivot end of the cam D extends approximately at rightangles to the cam an arm G, engaging the slotted end'H', of a piston rodH, car

ryiug a piston I, mounted to slide longitudinally in a cylinder J,likewise mounted on the cowcatchernear the inner end thereof asindicated in Fig. 2. This cylinder J is connected by a pipe K, with amotive agent under the control of the operator, preferably the engineerin the cab of the locomotive, so that when the motive agent is permittedto pass into the pipe K it flows to the cylinder J to exert a pressuretherein on the piston I to move the latter forward, so that the head Hof the piston rod H imparts a swinging mo tion tov the arm G andconsequently an upward swinging motion to the cam D. As the latterengages theunder side of the pilot bar or coupling link 'A, the latteris caused to swing upward into an approximately'horizontal positionready for coupling.

To provide against the possible'absence of v7o a motive agent, incompressed air, steam,water, gas or electricity, instead of actuatingthe cam D by such agents-agent or fluid pressure, it may be actuated byhand by a suitable mechanism under the control of the engineer orfireman, other man or operatorv upon the locomotive. It may also beactuated from the side of the cowcatcher, and for this purpose we preferthe arrangement shown in the drawings, the shaft E, being provided atoneouter end with a crank arm L, which when turned upward, causes a likeupward swinging of the cam D to lift the pilot bar A, as abovedescribed. After the pilot bar has been coupled in the usual manner tothe car or other vehicle, then the cam D may be returned to its normalposition by turning the V shaft E in an opposite direction. It will beseenby this arrangement, that the operator is not obliged to step on thecowcatcher to raise the pilot bar and consequently his life is notendangered.

It is understood that the pilot bars ofloco motives are usually veryheavy pieces of iron, so located upon the pilot, that to lift which 9 5for the purpose of making a coupling with it, a man must stand to oneside from six to twenty-four inches in a leaning position that makes theact of coupling itv the most dan' gerous of any coupling made in railwayserv- I00 ice or practice.

With the device described, the operator is not compelled to assume anangular, awkward, or dangerous position, and has while making thecoupling the full use of all his limbs, with body in an erect position,in consequence of having no lifting to do in connection with the act ofcoupling, as the raising of the pilot bar is done by the specialmechanism described.

The cylinderJ instead of being fixed to the locomotive engine, as shownin Fig. 2, may be pivoted thereto so as to be capable of an cecillatingor swinging motion in an essentially vertical plane, in order toaccommodate for the movement of the pilot bar to either side. Thecylinder in this case would be an upright oscillating cylinder, and theupper end of the piston rod could be connected directly with the pilotbar by means of alug or boss on the latter. This construction isillustrated in Figs. 3 and 4, in which the upright cylinder Jis'provided with side trunnions J supported in bearings N, said bearingsbeing slotted, as shown at N, so that the cylinder can assume alaterally inclined position, as indicated by dotted lines in Fig. 4. Thepiston rod 11 is provided with a fork H which has pivotal connectionwith the pilot bar A by means of lugs A secured to the said bar. Mindicates a suitable mechanism having an operating connection to theengineers cab, and the said mechanism is constructed to turn the supplypipe K and thereby incline the cylinder J to swing the pilot bar toeither side.

Having thus described our invention, we

claim as new and desire to secure by Letters Patentengine and connectedwith a supply of a motive fluid, a piston constructed to move in thecylinder, a cam pivoted to the pilot and operatively connected with thesaid piston, said cam being adapted to engage the pilot bar, and ahandle having an operative connection with the cam to lift the latterand the pilot bar independently of the mechanism operated by the piston,substantially as described.

3. A pilot bar attachment, comprising a cylinder held on the engine andconnected with a supply of a motive fluid, a piston constructed to movein the cylinder, a piston rod secured to the piston, a cam pivoted tothe pilot and adapted for engagement with the pilot bar, and an armsecured to the cam at the pivot end thereof, said arm having a slot andpin connection with the outer end of the piston rod, substantially asdescribed.

PETER G. OOTTER.

LEONIDAS I'IOLLADAY.

RANSOM J. DUNCAN.

Witnesses:

O. H. WILLIS, O. V. CONNOR.

